16216771416289 has 4 divisors (see below), whose sum is σ = 16239077842624. Its totient is φ = 16194464989956.

The previous prime is 16216771416271. The next prime is 16216771416319. The reversal of 16216771416289 is 98261417761261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16216771416289 - 2⁷ = 16216771416161 is a prime.

It is a super-3 number, since 3×16216771416289³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16216771416089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11153212077 + ... + 11153213530.

It is an arithmetic number, because the mean of its divisors is an integer number (4059769460656).

Almost surely, 2^{16216771416289} is an apocalyptic number.

It is an amenable number.

16216771416289 is a deficient number, since it is larger than the sum of its proper divisors (22306426335).

16216771416289 is an equidigital number, since it uses as much as digits as its factorization.

16216771416289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22306426334.

The product of its digits is 12192768, while the sum is 61.

The spelling of 16216771416289 in words is "sixteen trillion, two hundred sixteen billion, seven hundred seventy-one million, four hundred sixteen thousand, two hundred eighty-nine".